Created
July 8, 2018 16:34
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Takes an array and returns a tally of its unique items
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| const nums = [3, 5, 6, 82, 1, 4, 3, 5, 82] | |
| const result = nums.reduce((tally, amt) => { | |
| tally[amt] ? tally[amt]++ : tally[amt] = 1 | |
| return tally | |
| }, {}) | |
| console.log(result) |
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